<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>外部样式</title>
	<link rel="stylesheet" href=".css/demo02.css"/>

</head>
<body>
	<h3>用户登录</h3>
	<form>
	用户名：<input type="text" class="in"><br>
	密码：<input type="password" class="in"><br>
	<input type="checkbox">记住密码&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp
    <a href="#">忘记密码</a><br>
	<input type="submit" id="tj">
</form>
</body>
</html>